Door-operating mechanism.



F. K. FASSETT. noon oPERAnN MEcHAmsM. APPLICATION FILED AUG16,19I1.

Patented Mar. 7,1916.

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DOOR OPERATING MECHANISNI.

APPLlcATloN HLED Au1s.16. 1911.

Patented Mar. 7, 1916.

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000B UPERATING MECHANISM.

APPLICATION msn Aura. le. 191x.

Patented Mar. 7,1916.

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DOOR OPERATING MECHANISM.

APPLICATION FILED Aue. Is, IQII.

Patented Mar. 7, 1916.

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Patented Mar. 7, 1916.

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WITNESSES:

F. K. FASSETT.

DOOR UPERATING MECHANISM.

APPLICATION FILED Aue. I6, |911.

12 SHEETS-SHEET 6.

Patented Mar. 7, 1916.

F. K. gAssETT. DOOR OPERATING MECHANISM.

APPUCATION FILED AUG-16,1911.

Patented Mar. 7, 1916.

I2 SHEETS-SHEEY F. K. FASSETT.

DOOR OPERATING MECHANISM.

APPLICATION man AUG. 16. 191|.

Patented Mar. 7, 1916.

F. K. FASSETT.

DUOR OPERATING MECHANISM.

APPLIATloN HLED AUG. 16. 1911.

1,174,403. Patented Mar. 7,1916.

l2 SHEETSMSHEET 9.

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DOOR OPERATING MECHANISM.

APPL|cAT|oN FMD Aue, 16, 19H.

1,174,403. Patent@ Mar. 7,1916.

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F. K. FASSETT.

DOOR OPERATING MECHANISM.

APPLICANON msn Aus. 16. w11.

Patented Mar. 7, 1916.

12 SHEETSASHEET Il.

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E. KI FASSETT.

DOOR OPERATING IVIECHANISM.

APPLICATION FILED AUG IE. i911.

Pntontpd Mm'. T, 1916.

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W /TNSSES UNITED STATES PATENT OFFICE.

FRANCIS K. FASSETT, 0F DAYTON, OHIO, ASSIGNOR T0 ELEVATOR SUPPLY @c REPAIR COMPANY, A CORPORATION OF ILLINOIS.

DOOR-OPERATING MECHANISM.

Application led August 16, 1911.

To ali ywhom t may concern:

Be it known that I, FRANCIS K. FAssET'r, a citizen of the United States, residing at Dayton, Ohio, have invented certain new and useful Improvements in Door-Operating hlechanism, of which the following is a clear, full, and exact description.

This invention relates to door-operating mechanisms and more particularly to those designed for operating the doors of passen- Among the more particular objects of the present invention are the following: To provide an improved transmitter for communicating motion from a suitable source of power to the door or doors to be operated, said transmitter preferably comprising means for causing the engagement and operation of the latch of a landing door to unlock the same and to open the door, and also to close the door and then lock it. Further to provide contractile means to coperate with the latching means to unlock or lock a door, said contractile means acting to open or close said door when suitably operated. Further to provide a connecting lever adapted to be rocked more than 180", the excess rock being utilized to unlock or lock the door. Further to provide parallels for making a connection between the movable car and a landing door, and which are arranged to be normally separated so that the car can be moved past the landing doors without the parallels tour-.ring coperating parts on the door and so that the said parallels can be closed together when they are to operate a door. Further to provide means for unlocking and locking the lock of a landing door which cooperates with keeper means at the door jamb, together Specification of Letters Patent.

Patented Mar. 7, 1916.

Serial No. 644,305.

with a motor device carried by the car for the purpose of operating the door. Further to provide in connection with a manually operated device for controlling the transmitter, means for equalizing the pressure on said manually operated device. Further to provide improved means for manual control in connection with deflectors at the landings. Further to provide improved means for disabling the transmitter when the door or doors are to be operated manually. Further to provide a singie power transmitter for selectively operating doors on different sides of a car. Further to provide clutch mechanism for cooperation with such selective means.

Further objects are to provide an eflicient and practical door operating means for operating the doors of elevator cars, parts of which are applicable to the' operation of doors on opposite sides of a railway car.

These being among the objects of the present invention, the same consists of certain features of construction and combinations of parts to be hereinafter described and then claimed with reference to the accompanying drawings illustrating suitable embodiments of the invention, and in which Figure 1 is a front view of an elevator car in dotted lines equipped With the present improvements and with doors on one Side only of the elevator shaft, parts beingbroken away; Fig. 2 is a side view of the same parts, and Fig. 3 is a plan view; Fig. 4 is a view similar to Fig. 1 of a car having mechanism arranged to operate doors on oppositie sides; Fig. 5 is a side view thereof, and Fig. 6 is a plan. In Figs. 4, 5 and 6 there is shown in dotted lines a door carried by the car and operated simultaneously with the landing doors. Figs. 7, 8 and 9 are front elevations showing portions of the paralles, the connecting lever and concomitant parts illustrating the manner of operating a door latch and securing the contracted position of the parallels in opening and closinga door; Figs. 10, 11 and 1Q are views illustrating the upper portions of the parallels shown in Figs. 7, 8 and 9; Figs. 13, 14 and l5 are end views of the parts shown in Figs. 7, 8 and 9; Figs. 16, 17 and 18 are detail front views showing three positions of the spring lever as it is actuated by the means for equalizing the manually operated device; Figs. 19 and 20 are views illustrating the connecting links of the equalizing means, respectively, without and with the manually operated device pressed, the car being at a landing; Fig. 21 is a plan view of the parts shown in Fig. 19 in the same* position, and Fig. 22 is a p an view of the parts shown in the position of Fig. 20; Figs. 23, 24 and 25 are detail side views of the manually operated device and the associated parts in connection with the defiector at a landing, said views showing different positions; Figs. 26 and 27 show the arrangement of the manually operated device and connections, when at some of the landings doors must be opened on both sides simultaneously; Fig. 28 is a view illustrating the succession of deflectors in the elevator shaft, each group of deflectors being broken away to make room for transverse sections of such group; Figs. 29, 30 and 31 are detail sectional views of the clutch mechanism showing three positions; Fig. 29 the position required when a primary door is toV be operated; Fig. 30 the p0- sition required for operating a secondary door, and Fig. 31 the position required when both doors are to be operated.. Fig. 32 is a detail view of the clutch-operating cam; Figs. 33, 34, 35 are detail front views of portionsof the power transmitter, showing the action of the disabling means; Fig. 33 showing the normal position of the disabling lever; ,Fig 34 showing how the lever cams the rock arm into a vertical position, thereby disenigaging the friction wheel from both pair of riction cones, and Fig. 35 showing how the disabling lever engages the lug on the friction wheel and rotates the Wheel far enough to leave the connecting lever above the center so that a door may be opened by hand. Fig. 36 is a transversesection through the transmitter principally for the purpose of showing the manner of attaching various parts thereto; Fig. 37 is a section on the line 37-37, Fig. 3 to show the manner of mounting and adjusting the secondary cones, and Fig. 38 is a detail viewiof the secondary sprocket showing the manner of mounting the clutch yoke.

It will be obvious throughout this explanation that the mechanism may be carried bv the car or not, but it is particularly designed and adapted to be carried by the car. The car which is indicated by dotted outlines is moved in the shaft, not shown. Only those parts are shown which are necessary to a full understanding of the present inventlon.

Referring to Figs. 1, 2 and 3, there is indicated at a floor a horizontally slidable door 55 which carries a latch 16 suitably mounted on the door. When the car is at or near the iloor at which a door is to be operated,

the operator may press upon the foot-button 117 shown as 48 in the modification in Figs. 23, 24 and 25, and the door will open automatically. On the release of the footbutton the door will close. The door 55 carries a vstud or roller 17 which is fixed to the door and projects toward the car. The said stud or roller passes between two parallels 13 and 14 (see Figs. 7 to 15 inclusive) which are carried by the car and which normally stand in the position shown in Figs. 1, 7 10 and 13. These parallels are adapted to be moved up against the roller or stud 17 (see Figs. 9, 12 and 15) which unlatches the door when the parallel 13 strikes the pin 16 on said latch. The movement of the parallels is peculiar in that, first, the parallel 14 is moved up against the stud or roller 17 to the position shown in Figs. 8, 11 and 14, and then the other parallel 13 acts to operate on the latch to unlock the door and to move against the stud or roller 17 in the manner to be more particularly described hereinafter. The parallels 13 and 14 are then moved bodily to the right carrying the door with them and vice versa to close it. The parallels are joined and held parallel by links 56 pivoted to them so that the action is like a parallel ruler. The parallel 14 is supported upon a truck 22 on the same track 57 which supports the door on the car if there be one, and said parallel 14 also carries a guide 58 which slides underneath a rail or track 59. The parallel 14 and hence parallel 13, is held vertical by the top and bottom link systems 19, 20 and 21 of which link 19 is fixed to a shaft 18 carried by the car. Fixed to parallel 14is a slotted connecting lever guide 23 shown in detail in Figs. 7 to 15 inclusive, and filled to parallel 13 is a second slotted connecting lever guifle 24 of slightly dii'erent contour, at least in so far as its lower end is concerned as shown more particularly in Figs. 7, 8 and 9. The

connecting lever 25 is fixed to a sprocket wheel 28 Whose axis of rotation is at 60 and has a pin 61 carrying a roller 62 which projects through the slots of and stands at the bottom of both guides as shown. The said connecting lever 25 moves around its axis 60 through an arc of 180 in opening and closing the door, but it also has an excess of movement above said 180C which is resorted to for the purpose of acting on the parallels mainly for the purpose of unlatching and latchingthe door. lVllen sprocket wheel 28 is rotated in the direction of the arrow Fig. 1, the roller 62 moves the parallel 13 to the position shown in Fig. 9 which acts to operate the latch 16 and open the door, said parallel moving against stop roller 17. The guide 23 is of such shape that it moves parallel 14 up against the stop roller 17 before the parallel 13 strikes it as shown in Figs. S and 14. By that time the connecting shown in Figs. 9, 12 and 15, so that as lever 25 continues to rotate on its axis 60 both of the parallels 13 and 14 are held against stud 17. procket wheel 28 makes a little over half a revolution or until roller 62 reaches the bottom of the slot again so that the door is fully opened. This movement of the sprocket wheel gives the 180.o movement to the connecting lever and the excess above said movement. Rotation of sprocket Wheel 28 backwardly then shuts and latches the door and restores the parts to the normal position shown in Fig. 1. The parallels 13 and 14 are made of sufficient length so that the door may be started to open before the car arrives even with the floor and so that the car may start away from the floor before the door 'is entirely shut. So long as the stud 17 is anywhere between the parallels 13 and 14, the door is movable by the mechanism on the car, whether or not the car is moving.

In Patent #937,696 is shown a construction of door opener similar in some respects to the present one but in that patent there is a constantly rotating shaft extending the full height of the elevator well with operating mechanism for the landing doors located at each floor. This is a very expensive installation and renders it necessary to duplicate the mechanism for every floor. In the present invention this is not necessary, as the fiXed stud 17 and pin 16a on the latch and deflectors or cams at each landing are all that is necessary. The defiectors or cams will be described more fully hereinafter. The operating mechanism in the preferred form of the invention is carried by the car and the car carries it to each Hoor and puts it in connection with each door to be operated.

The motor M (see Figs. 1, 2 and 3) may be an electric motor mounted on the car for the purpose of constantly driving a horizontal shaft 1. On said shaft are fixed a pair of friction cones 32, 32 and two friction wheels 4 and 4, Bearings 36 and 64 are provided which are rockable on pivots 34 and 35 and carry short shafts upon which are fixed friction cones 33 and 33 and the friction wheels 3 and 3a. (See also detail Fig. 37.) A friction wheel 2 is provided, and if this is bodily moved to the left from its position in Fig. 1 and jammed in between cones 32 and 33 and held there, it will rock bearing 64 so that the friction wheel 3 will be forced against wheel 4, and both cones will be driven by shaft 1 and will rotate wheel 2 in the direction of the arrow, Fig. 1, to open the door. Wheel 2 has a cut-away portion 2B (see detail Fig. 34) which, in the normal position of the parts, as shown in i frame 8, and as F'g. 1, normally stands between the friction w eels 32 and 33 so that the friction wheel 2 or the said wheels 32, 33 will not be worn away. `If any portion of the wheel 2 except the cut-away 21 is forced in between the wheels 32 and 33, the said Wheels will similarly drive wheel 2 but in the opposite direction to close the door. Wheel 2 is splined to a short shaft 6, mounted in a rock arm 7 having a bearing 5, as fully shown in Figs. 16, 17, 18 and 33-36. This arm 7 rocks on a short shaft 10 fixed in the stationary it is rocked to the left, it carries the friction wheel 2 bodily to the left between wheels 32 and 33 and vice versa.

The means for rocking the arm 7 comprise a lever 11 which is pivoted to a short arm 7Il of arm 7 and is normally pulled to the left by spring 66 as shown in Fig. 16. A lug 65 on the spring lever 11 normally rests against the arm 7 so that the friction wheel 2 is held to the right as shown in Fig. 1 and Fig. 33. If the lower end of lever 11 is moved to the right far enough to remove the lug 65 from contact with the arm 7 to the position shown in Fig. 13, the fulcrum of lever 11 is changed from the lug to the point at which said lever bears upon its prime mover at its lower end, and the force of the spring 66 will move rock arm 7 and friction wheel 2 to the left. The intermediate position of spring lever 1l as shown in Fig. 17 will be described later. Fixed to the shaft 6 on which the friction wheel. 2 is mounted is a sprocket wheel 9 (see Figs. 1, 2, 3, 35 and 36), over which passes a link belt 67 for transmitting the power to the sprocket wheel 28 to which the connecting lever 25 is secured. Idlers 46 and 46 adjustably mounted in the frame 8 may be provided to take up slack. The connecting lever 25 is secured directly to sprocket wheel 27 if doors only on one side of the elevator shaft are to be operated.

For controlling the power transmitting mechanism and for throwing the spring lever 11 to the right, the following mechanism is employed: The button pressure equalizer 12, Figs. 16, 17 and 18, is mounted on the frame 8 so that it may be rocked on the same shaft 60 on which sprocket wheel 28 is mounted. It carries a roller 8O which is normally located as shown in Fig. 16. It is here shown as against the lower end or shoe of the lever 11. The fork end 81 (see Fig. 21) of link 30 embraces the lever 11 and the roller 80, and is pivoted to the equalizer 12 at 12 so that when the link is moved to the right it forces the roller 80l against the inclined face 82 of lever 11 and moves it against the force of spring 66 to the position shown in Fig. 17. As the tension of the spring 66 increases, more f rce would have to be applied to the link 30 and to the foot-button or manual device 117 1 etition.

which operates it. The lever 11 is therefore further cut-away or inclined at 83 so as to more nearly equalize the pressure necessary to move the lever its full extent. To the other end of link 30 is pivoted a bell-crank 110 to which is pivoted a link or rod 111 which is pivoted to a bell-crank 112. The bell-crank 112 has a roller 113 which is adapted to travel along a deiector or cam 114, fixed one at each elevator landing. Crank 112 is hung on a pivot shaft 115, which is carried by bell-cranks 116,y 116, that are mounted on a pivot-shaft 118 journaled below the floor of the car, and may be rocked by a foot button or manually operated device 117. rthe action of the parts from lilik 30 on Will be described more fully in connection with other forms of the invention, but in the form of the invention in which a landing door is operated automatically at each floor (if desired) the power transmitting mechanism 1s controlled in the first place by the manual operation of part 117, as by foot so as to bring roller 113 in line with a defiector or cam 114, and in the second place by the said detlector which, as the car passes along, shifts the bell-crank 112 and causes it to exert a pull. on the link or rod 111. By link 30 the equalizer and spring lever are actuated as described in connection with Figs. 4, 5 and G.

lt often happens that an elevator shaft has landing doors on opposite sides which it is desirable to operate? and there is therefore shown in Figs. et. 5 and G a construction by which either or both of such doors may be operated, and there is also shown in dotted lines a door carried by the car and operated in obvious manner from another set of parallels simultaneously with what will be called a secondary door. In these figures the same reference characters are used for parts corresponding with parts before described so as to avoid needless rep- The link 30 has been mentioned in connection with the main forni of the invention. A link 30 now takes the place thereof and has a slotted end 3G in which is located the end of a pivoted bell-crank Si held in the position shown by spring 85 and in another slot 87 is a similar bellcrank S9 and 9U are links attached to said bell-cranks respectively, and are attached to bell-cranks 27 and 26 shown in Figs. El and 25,426 being indicated liv dotted lines. Bell-cranks 27 and 26 are loosely hung on a short shaft 91 and carry rollers 92 and 93'Fig. 4, at their upper ends. The foot-luitton or manually operated device 43 is attached to a bell-crank 94.- fixed on rock shaft 29. alben the foot-button is pressed it rocks shaft 91 to the right as shown in Fig. 24. carrying bell-cranks 26 and 27 bodily to the right. A cam or deiiector 95 is fixed at the landing Hoor of the elevator shaft in line with the travel of roller 93. As the car approaches the floor the operator steps on the foot-button throwing both bell-cranks Q6 and Q7 out, and roller 93 strikes the deliector 95 rocking its bell-crank 27 and pulling down on link 89 which rocks bell-crank 84 Fig. Q0, and draws connecting rod 30SL to the right. This rocks the button-pressure-equalizer 12 and forces its roller along the inclines 82 and 83 of the spring lever 11, thus forcing the lower end of said lever to the right until the lug is out of contact with the rock arm 7, the parts being then in the position shown in Fig. 18. Spring 66 then by its pull, rocks arm 7 and forces the friction Wheel 2 to the lcft in between the cones 32 and 33 driving the said wheel, gear 9, link belt or sprocket chain 67, lower sprocket QS which opens the door as above described. Then the roller 93 runs off of the cam 95 or when the operator takes his foot off the manual pressure device 4S, the spring 85 pulls the bell crank 84 backward, thereby releasing the pressure on the lower end of spring lever 11. Spring lever 11 now moves to the left until lug 65 comes in contact with rock arm 7 as shown in Fig. 17, when the spring G6 thereupon, and because of the change of fulcruni, rocks arm 7 to the right forcing wheel 2 in between cones 32 and 33 which rotate wheel Q in the opposite direction thus closing the door. The parts just described will then be in the position shown in Fig. 1'6. Because of uthe movement of connecting lever 25 around an axis, the door moves sldwly .at first increasing in speed until saidnievcr is vertical, and then decreases in speed until the door comes to rest. 'If a secondary door is to be operated a cam 95a acts on roller 92. There is mounted on the shaft 6U and alongside sprocket wheel 28 corresponding mainly with sprocket wheel. Q8. a` disk 31 which carries the connecting lever Q5 instead of sprocket wheel 29 as in the form of the invention previonslv described. Means are provided for clutching the motion trapsinitting wheel Q8 to either the disk 31 or to a sprocket wheel 49 as shown in Figs. 29, 30, 31 and 3Q. A clutch yoke 50 (see also Fig. 38) has a ring shaped central portion loosely embracing the hub 31a of disk 31 and pivoted to it at 7G so that it can be rocked thereon. The beads 72 and 73 of said clutch yoke are located and move in slots or recesses 76 and 75 respectively in disk' 31. A locking pin 77 slidable in the rounded portion of slot 7G is shown in position in Fig. 29 to lock disk 31 to wheel 28a to operate the former only., but not to operate the sprocket-Wheel 119 for driving the mechanism of the secondary door which is some other door in addition to the door operated by the parts described in relation to Figs. 1, 2 and 3. The

Secondary door 55al which is indicated in Figs. 5 and 6 by dotted lines may be operated by providing another disk 31a similar to 'disk 31 but at the opposite side of the car (se Figs. 4 and 5) which disk may be mounte on a short shaft 31". Said disk is adapted to act upon another set of parallels 13i not only to operate the said secondary door but a car door 55b having a projection 55c extending between said parallels. A chaintransmission 31c communicates motionto said disk 31 from a transverse shaft 31'l which extends across the car to the sprocket wheel 49 and carries it, and over which sprocket wheel is trained a motion transmitting chain or belt 49", which also passes over aforesaid sprocket wheel 49 forming part of the clutch mechanism.

Referring again to Fig. 30, a yoke 51` has a central portion loosely embracing the hub of sprocket wheel 49 and pivoted to it so that it may be rocked thereon. If the yoke 51 is moved until the edge of its head 101 reaches position 102 it will move locking pin 77 across until it frees the disk 31 from the driving sprocket 28 and locks secondary sprocket 49 to sprocket 28. When the friction wheel 2 then rotates it will drive the secondary door mechanism but not disk 31 and the primary door mechanism. If the yoke 51 is rocked half way, pin 77 will lock both disk 31 and secondary sprocket 49 to driving sprocket 28a and both doors at the same floor will be opened and closed simultaneously through the medium of mechanism to be described in connection with Figs. 26, 27 and 28. This position is shown in Fig. 31.

Cams 52 and 53, shown in detail in Fig. 32, are mounted to rock upon pivots 8a in Aframe 8 and are operated by links 104, 105

connected to bell-cranks 84 and 88 respectively, Figs. 19 to|21. It is obvious that when the primary door deil'ector 95 causes the bell-crank 27, Figs. 23, 24 and 25, and bell-crank 84 to be rocked, it will throw cam 52 so as to move the parts in Figs. 29, 30 and 31 to the position shown in Fig. 29 so as to operate the primary door only. If a secondary cam or deflector 95a causes bellcranks 26 and 88 to be moved, this will throw the cam 53 and lock the secondary sprocket49 to driving sprocket 28 freeing disk 31 and operating the secondary door only; (see Fig. 30). The deflectors or cams at the landings, described in connection with the operation of the apparatus shown in Figs. 4, 5 and 6 are also shown in connection with the operation of either a primary or secondary door or both doors simultaneously to be now described.

` Figs. 26 and 27 show the arrangement of connections for the manually operated device when doors must be opened on both sides simultaneously at some ofthe landings. To understand this portion of the modified 4 mechanism for operating doors simultaneously, reference should also be had to the broken view, Fig. 28, showing the arrangement and construction of the deiectors or cams by which doors may be operated either simultaneously or separately.V By comparison of the delectors or cams shown in Fig. 28 with the mechanism described in connection with Figs. 1, 2 and 3 and in connection with Figs. 4, 5 and 6 can be readily understood, which deflector or cam can be employed for controlling the operation of the mechanism in Figs. 1, 2 and 3 where one door only on one side is to be operated, and which deflectors or cams can be used when doors on opposite sides of the elevator well are to be operated Separately as in Figs. 4, 5 and 6.

In the modified form of apparatus shown in Figs. 26 and 27, the rod 120 is that which goes tothe equalizer such as shown in Figs. 16, 17 and 18, and this is connected with a bell-crank 121, to which is also ivoted a rod 122 which in turn is pivotaly connected with a bell-crank 123 forming a part of the Amanual pressure means and whlch carries a contact roller 124. The bell-crank 123 and roller 124 correspond to similar parts in Figs. 1, 2 and 3 in which form of apparatus only one door is operated. The said bellcrank 123 is pivotally mounted on a shaft 125 which may be moved forwardly by means of bell-cranks 136 pivoted to the bottom of the car by a pivot-shaft 137, the manual pressure device or foot-button 138 being pivoted to one bell-crank 136 in similar manner tothe construction shown in Figs. 23, 24 and 25.A

In the form of the invention which is now being described, the clutch shown in Figs. 29, 30 and 31 is operated by rods which take the place of the rods 104, 105 shown in Figs. 4, 5 and 6. To this end a rod 126 is pivotally 110 connected with a cam similar to cam 52 and a rod 131 is pivotally connected to a cam similar to cam 53. The rod 126 is for throwing the clutch to control the primary door only and the rod 131 throws the clutch for 115 controlling only the secondary door. The said rod 126 is pi-voted to la bell-crank 127 to which is pivotally connected a rod 128 pivotally connected with a bell-crank 129 on shaft 125 and provided with contact roller 120 130. The rod 131 for the secondary door is pivotally connected with a bell-crank 132, to which is pivotally connected a rod 133 pivotally connected with bell-crank 134 also hung on shaft 125 and provided with a con- 125 tact roller A135. There are therefore in this form of the invention three bell-cranks 123, 129 and 134 in connection with the manual pressure device, and when the latter is pressed it is obvious that the lateral move- 130 ment of the shaft 125 will throw all of the contact rollers on said bell cranks into the th of any deflectors or cams which might e coperatively arranged in the elevator shaft atthe landings. The arrangement of the cams as before stated is shown in Fig. 28. This view extends the height of the Sheet of drawings and indicates four landings or fioors of the building. The dei'lector or cam A is employed at each landing for the purpose of acting on the contact roller 124 of bell-crank 123 which acts through rod 120 on the equalizer and on the spring lever such as 11 before described for the purpose of controlling the power transmitter to unlock and open a door or doors. Other deflectors or cams as B, C, are arranged either separately or together at the landings, the arrangement depending upon whether one door oi' a door at the opposite side of the elevator cage is to be operated or whether both doors are to be operated simultaneously.`

At the lower and upper landings indicated in Fig. 28 the delectors or cams B, C, are shown as of less height than the deflector or cam A, which latter cam controls the power transmitter at all the landings. The height of these deflectors, C, at said landings is equal, with a view to engaging the rollers 130 and 135 of bell-cranks 129 and 134 so as to properly control the clutch through rods 126 and 131 to throw the parts to the halfL way position shown in Fig. 31 for controling the simultaneous opening and closing of the landing doors on opposite sides of the elevator shaft. If at other landings one or the other of the doors on opposite sides of the elevator shaft are to be opened and closed, the appropriate deflectors, or cams B, C, are placed at the landings as shown at' the intermediate portions of Fig. 28. That is to say, deflector or cani B is located at the third landing if a primary door onlv is to be opened, but in this location the said defiector B will be higher than in the case where it is associated with a defiector or cam C At the second land ing no deflector or cam B is shown, but only a defiector C which wiil control the operation of the opening and closing of a secondarv door, and said cam C is ikewise higher than it is when associated with defiector or cam B.

It may happen that because of the failure of the motor M, or because the operator for some reason wants to ieave the .door open after he leaves the floor, or for some other reason he may want to move a door by hand. He could not do it with the parts in the position shown in Figs. 1 and 4 because the connecting lever 25 is below the hori zontal, and even if it were not the friction wheel 2 would have been rotated a partial revolution and. as it would be forced in hen tween cones 32 and 33, the motor if riiiiu when it is brought to ning would close the door and if not running would make it very hard-to turn over the train of mechanism. Mechanism is therefore provided which is more fully illustrated in Figs. 33, 34 and 35 to free the friction wheel 2 from both sets of friction cones and rotate wheel 28, or wheel 28a and disk 31, or wheels 28 and 49, as the case may be, until lever 25 is above the hori zontal. The disabling lever 38 accomplishes this. In Fig. 33 the normal position of the disabling lever is shown, in Fig. 34 the first shifted position, and in Fig. 35 the position of the lever when it has been fully actuated and the connecting lever 25 moved beyond dead center. The disabling lever is pivoted to the frame 8 at 106 and normally held in the position shown in Fig. 33 by a spring 107. Pull rod 37 is connected to the outer end of the disabling lever and extends down into the car. The short end 38a of disabling lever 38 stands just under the short arm of rock arm 7 so that when lever 38 is rocked downwardly the shortJ arm strikes the rock arm 7 at 40, as shown in Fig. 34, and rocks the arm 7 and friction wheel 2 sufficiently to free the latter from both sets of cones. The disabling lever 38 the position shown in Fig. 34: also strikes a lug 39 on the friction wheel 2 and rotates the wheel suiiciently to raise the lever 25 above the horizontal as shown in Fig. 35. The door may then be moved either way by hand. lf the operator wants to leave the door open he goes on and', if the motor is running, the release of the pull rod 3T will release the wheel 2 and allow it to be again forced in between cones 32 and 33` when, by the action of power spring 66, the parts will be automatically restored to the position shown ready for a new operation. It is calculated that the spring 107 will be no more than strong enough to hold up the weight of the disabling lever, pull rod 37, etc. and that the friction of the disabling lever against the short arm or lug of rock arm 7 will be suiiicient to prevent the disabling lever being raised by its spring iinaided. The main power spring 66 will be quite powerful and there will be considerable fr1ction at the point indicated. There is an extension 109 on the outer end of the disabling lever which is intended to engage a lug 108, l o cated on the wheel 2 diametrically opposite the lug 39, when the friction wheel 2 is rotated to the right in opening a door so 'far that the connecting lever is moved to horizontal, and which will rotate the wheel 2 to the left far enough to getthe connecting lever 25 0H dead center so that the door may be closed by hand.

In order to move the parallels 23, 24 back without also moving the door, the car should be placed mid-way between two landings; as, in order to secure the greatest possible time in which to close a door, should the car be started away from the landing before the manually operated device is released, the parallels should be as long as possible. They may and preferably will be but slightly shorter than the distance between the latches of the two adjacent landing doors that are nearest together. When the car is even with the landing, the abutment 17 above the latch on the door should be mid-way between the ends of the parallels.

It is obvious that this invention is susceptible of various modifications, as `parts may be added, parts omitted, and parts rearranged and modified, without departing from the spirit and scope of the invention.

\ What I claim is:

1. In a door operating mechanism, the combination of an elevator car, a motor and pivoted lever rotated thereby carried on the car, a landing door at a floor, and means connecting saidvlever to said door when the car is adjacent the door to open the same, comprising parallels carried by the car and engaging said door as the the floor and laterally moved by sald lever.

2. In a door operating mechanism,the combination of an elevator car, a constantly running motor carried thereby, a landing door in an elevator shaft at' a Hoor passed by said car, door operating means carried by the car and normally unconnected with said motor, and mechanism under the control of the operator for connecting said motor to said dooroperating means and the latter to the door for opening the same.

3. In a door operating mechanism, the combination of an elevator car, a motor thereon, a landing door at a fioor, parallels carried by the car and directly engaging Said door to move the same, and means for connecting said motor to said parallels at will and adapted to move said parallels laterally.

4. In a door operating mechanism, the combination of an elevator car, a motor and a power transmitter thereon, means for connecting said motor andl transmitter at will, a landing door, a latch carried on said door, engaging means operated from said transmitter for engaging and operating said latch to unlock or lock said door, and additional means on said door, engaged by said engaging means, for opening 0r closing said door by said engaging means when the latter is not operating said latch.

5. In a door operating mechanism, thecombination of a door, latching means therefor, contractile means for cooperating with said latching means to unlock or lock said door, and a power transmitter for actuating said contractile means when contracted to open or close said door.

car approaches lallels and adapted to 6. In a door operating mechanism, the combination of a door, relatively movable parallels, and means for shifting said parallels laterally for engaging a part of said door to open or close said door.

7. In la door operating mechanism, the combination of an elevator car, a power transmitter thereon, a door, and contractile parallels carried by said car and operated by said power transmitter for controlling said door.

8. In a door operating mechanism, the combination of an elevator car, a power transmitter thereon. a door, a latch for said door, and contractile parallels carried by said car and operated by said power transmitter for operating the door-latch to unlock or lock the door and for operating the door to open or close it.

9. In a door operating mechanism, the combination of a door, relatively movable parallels for engaging a part of said door to open or close said door, and means for nlaintaining the parallelism of said paral- 10. In a door operating mechanism, the combination of a door, relatively movable parallels for engaging a part of said door to open or close said door, means for maintaining the parallelism of said parallels, and means for guiding said parallels transversely.

11. In a door operating mechanism, the combination of a door, relatively movable parallels for engaging a part of said door to open or close said door, means for maintaining the parallelism of said parallels, and means for connecting the ends of said parsecure equal movements of the said ends.

12. In a door operating mechanism, the combination of a dqor, relatively movable parallels 'for engaging a part of said door to open or close said door, means for maintaining the parallelism of said parallels, and pivoted link-devices for connecting both ends of said parallels and adapted to secure equal movements of both ends.

13. In a door operating mechanism,A the combination of a door, a latch therefor, door controlling parallels, means for supporting the parallels, and means for moving said parallels to or from each other to act on said latch, and for moving the parallels bodily in a lateral direction to open said door.

14. In a door operating mechanism. the

combination of `an elevator car, normally open door controlling parallels supported by said car, and means for moving said parallels nearer together out of their said open position, `or away from each` other out of closed position, and also bodily together in a lateral direction.

15. In a door operating mechanism, the

combination of an elevator car, normally open door controllin parallels supported by said car, means for moving said parallels nearer together out of their said open position, or away from each other out of closed position, and also bodily together in. a lateral direction, and a landing door provided with means for engagement Abetween and by said parallels.

16. In a door operating mechanism, the combination of an elevator car, normally open door controlling parallels supported by said car, means for movin said parallels nearer together out of their said open position, or away from each other out of closed position, and also bodily together in a lateral direction, and a landing door, a door latch for engagement between and by said parallels, and with additional means for engagement between and by said parallels for opening or closing said door during their said bodily lateral movement.

17. In a door operating mechanism, the combination of an elevator car, inactively separated door controlling parallels supported by said car, means for moving said parallels nearer together out of their inactive position, or away from each other out of active position, and also bodily together in a lateral direction, said means comprising mechanism for moving first one parallel-the first-toward the second, and thereafter, the second toward the first, and a landing door provided with means for the first engagement of said first parallel and for the second engagement of the second parallel.

18. In a door operating mechanism, the combination of an elevator car, inactively separated door controlling parallels supported by said car, means for moving said parallels nearer together out of their inactive position, or away from each other out of active position, and also bodily together in a laterai direction, said means comprising mechanism for moving first one parallel-the first-toward the second, and, thereafter, the second toward the first, a landing door, and a latch and a separate abutment on said door, said first parallel rst engaging said abutment, and said second parallei then engaging said latch.

19. In a door operating mechanism, the combination of relatively movable doorcontrolling parallels, a door, door locking means whlch may be engaged between said paralells, guides on said parallels provided with cumming portions, a connector operatin cn said guides and causin the unlocking or locking of said door an its opening or closing, and a power transmitter for operating said connector through a path of movement in excess of its door-opening or closing movement, the said excess movement serving, through the medium of said camming portions, to unlock or lock said door, and the said door opening or closing movement of said connector causing the engagement of said parallels with a part of said door.

20. In a door operating mechanism, the combination of relatively movable door-controlling parallels, a door, door locking means which may be engaged between sai parallels, guides on said parallels, a connector operating on said guides and causin the unlocking or locking of said door an its opening or closing, and a power transmitter for operating said connector through an arc of 180o and an excess thereof, the said excess movement serving to unlock or lock said door, and the said 180O movement of said connector causing the engagement of said parallels with a part of said door.

21. In a door operating mechanism, the combination of a door, a door latch, pivotally mounted door operating lever, means for swinging the same in one or the other direction in an arc somewhat greater than 180, means for operating on said latch, said greater movement of said lever placin said means in condition to operate sai latch, and power mechanism for acting on said Swingin means.

22. In a oor operating mechanism, the combination of an oscillatory door-operating lever, a wheel rotatable in either direction through a given arc of a circle, means for transmitting motion from said wheel to said lever and for causing said lever to move through a greater arc and relatively movable door operating parallels operated by said lever.

23. In a door operating mechanism, the comblnation of a laterally movable wheel, means for turning said wheel in either of two directions according as the wheel is moved to one side or the other, motion trans; mitting means-operable by said wheel, and a door-operating lever movable by said motion transmitting means through an arc greater than 180.

24C. In a door operating mechanism, the combination of an oscillatory support, a wheel journaled thereon, means arranged to coperate with the rim of said wheel for turning it in either of two directions according to the position of said support, m0- tion transmitting means operable by said wheel, and a door-operating lever movable by said motion-transmitting means.

25. In a door operating mechanism, the combination of an oscillatory support, a Wheel journaled thereon, means located at opposite sides of said wheel for turning it in either of two directions, means for oscillating said support and shifting said wheel to either of said turning means, motion- 

